body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f8ff;

    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background: linear-gradient(to right, #333, #444);
    color: #fff;
    padding: 20px;
    text-align: center;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3);
}

nav {
    background-color: #0073e6;
    padding: 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background-color 0.3s, transform 0.2s;
}

nav a:hover {
    background-color: #005bb5;
    transform: scale(1.05);
}

footer {
    background-color: #333;
    color: #ccc;
    text-align: center;
    padding: 10px;
    margin-top: 40px;
    font-size: 0.9em;
    border-top: 2px solid #0073e6;
}

main {
    padding: 30px;
    max-width: 900px;
    margin: auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #0073e6;
    margin-bottom: 20px;
}

p {
    line-height: 1.6;
    margin-bottom: 10px;
}

h3 {
    margin-top: 25px;
    color: #444;
}